Would you ever buy this handheld gadget that measures your stress by analyzing your saliva?

A JAPANESE firm has created a handheld gadget to check stress levels by analyzing saliva, allowing people on the edge to check their frayed nerves as frequently as they want. The 'Cocoro (Heart) Meter' has a chip which a person moistens with saliva and sticks into the machine to discover his or her stress in one minute.

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